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scgyhjy金蟲(chóng) (初入文壇)
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[求助]
請(qǐng)大神幫幫忙修改此英文摘要（附中文），自己改了幾次了，還是不通過(guò)，萬(wàn)分感謝
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為解決傳統(tǒng)信道估計(jì)方法在稀疏信道估計(jì)的性能不夠理想，許多算法沒(méi)有考慮到導(dǎo)頻放置等問(wèn)題，將壓縮感知理論(Compressed Sensing，CS)應(yīng)用到稀疏信道估計(jì)中。開(kāi)展基于CS理論測(cè)量矩陣互相關(guān)最小化的導(dǎo)頻圖案設(shè)計(jì)準(zhǔn)則的分析，提出信道估計(jì)均方誤差最小準(zhǔn)則來(lái)選擇CS算法的方法，建立OFDM系統(tǒng)模型和導(dǎo)頻設(shè)計(jì)方案。仿真結(jié)果表明：改進(jìn)的離散隨機(jī)近似方案的導(dǎo)頻設(shè)計(jì)，比遍歷性搜索收斂更快更有效，對(duì)基于OMP算法的信道估計(jì)性能有較大幅度提升。 In order to solve the problems of the conventional channel estimation method is not ideal in the performance of sparse channel estimation，Many algorithms do not take into account the pilot placement。The compressed sensing theory is applied to sparse channel estimation was investigated。After the analysis of pilot pattern design criteria based on the CS theory measurement matrix cross-correlation minimization，A method was presented to the channel estimation mean square error criterion to select the CS algorithm，The OFDM system model and the pilot programs was established。The simulation results show that：The pilot design for discrete stochastic approximation schemes for improvement，than the ergodicity search converges faster and more efficiently，the based on OMP algorithm of channel estimation performance is higher。 |
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【答案】應(yīng)助回帖
★ ★ ★ ★ ★
scgyhjy: 金幣+5, 翻譯EPI+1, ★★★★★最佳答案, 謝謝 2013-09-06 08:21:37
scgyhjy: 金幣+5, 翻譯EPI+1, ★★★★★最佳答案, 謝謝 2013-09-06 08:21:37
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In order to solve the problems caused by conventional channel estimation method which is not ideal in the performance of sparse channel estimation，many algorithms do not take into account the pilot placement. The compressed sensing theory applied to sparse channel estimation was investigated. After the analysis of pilot pattern design criteria based on the CS theory measurement matrix cross-correlation minimization，a method was presented to the channel estimation mean square error criterion to select the CS algorithm，The OFDM system model and the pilot programs was established. The simulation results show that the modified pilot design for discrete stochastic approximation schemes is faster and more efficiently than the ergodicity search converges. Simultaneously, the channel estimation performance based on OMP algorithm is improved. 不光樓主寫(xiě)的英文看不懂，中文我也看不懂，感覺(jué)中間銜接的沒(méi)有什么邏輯性。只能粗略改一下了……………… |
2樓2013-09-05 16:33:34
xux730
鐵桿木蟲(chóng) (著名寫(xiě)手)
- 翻譯EPI: 86
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- 蟲(chóng)號(hào): 1374299
- 注冊(cè): 2011-08-20
- 專業(yè): 細(xì)胞周期與調(diào)控
3樓2013-09-06 00:05:55
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